THE pressure is on Sunshine Coast water suppliers as tanks on rural residential properties scattered throughout the region empty with July rainfall at less than a third of the month's average.

The Bureau of Meteorology sees no chance of rain through to the end of the month and little likelihood of any significant falls well into August.

Water carriers are reporting lengthy delays were already occurring at Unitywater standpipes throughout the region and backlogs for deliverers stretching out to more than a week.

But one supplier says part of the problem is the failure by some property owners to regularly check their tanks and to manage their water usage.

Lance Davies of Noosa Water Tankers said he knew of some properties where a 7000 litre refill would last four weeks and others that can't get through a week with the same amount.

"People who have lived in cities think water magically appears,” he said. "When you are on tank water you need to check the tank regularly and keep gutters and the grates to the tank clear.

"You need to know your water use. People run out and then they're desperate.”

The business has a backlog through to next Tuesday.

Michelle Oliver of Palmwoods Water Supply and Tank Hire describes the situation at the moment as "chaos”.

"It's very busy,” she said. "The trucks are running constantly and we're booked out through Monday already.

"If the weather stays like this into next week we are heading to be booked out two weeks ahead.”

Ms Oliver said her trucks were running from 5.30am to 6.30pm daily with delays at standpipes where trucks have been queued four deep with a 20-minute load time.

She said she had not experienced similar demand since she and her husband bought the business nine years ago.

BOM forecaster David Crock said there was no rain on the horizon with an expected trough crossing from the west late Monday into Tuesday unlikely to have much water in it.

The region continues to enjoy ideal weather conditions for those not on water tanks with clear conditions under a high pressure system likely to dominate through the coming weekend.

The minimum overnight temperature at Sunshine Coast Airport reached 6.8 degrees at 5.30am with the apparent temperature a much cooler 3.6 degrees. To the north Gympie was still shivering at 7am when the gauge dropped to 2.1 degrees (0.4 apparent).

It will warm to a sunny 23 degrees on the coast with south, south-westerly winds to 20kmh then switching south-east.

Friday's temperature will range from 10-24 degrees with fog early followed by a sunny day with light winds.

Saturday, Sunday and Monday will reach a high of 25 degrees and warmer in places with the weekend starting with fog early and then west, south-westerly winds to 20kmh switching east, south-east before becoming light later in the day.

Sunday and Monday will both be mostly sunny days with light winds.